// Copyright (C) 2025 Kumo inc.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//

#ifndef ROTHAR_PEGTL_CONTRIB_FUNCTION_HPP
#define ROTHAR_PEGTL_CONTRIB_FUNCTION_HPP

#include "../config.hpp"

#include "../apply_mode.hpp"
#include "../rewind_mode.hpp"
#include "../type_list.hpp"

#include "../internal/enable_control.hpp"

namespace rothar
{
   namespace internal
   {
      template< typename F, F U >
      struct function;

      template< typename ParseInput, typename... States, bool ( *U )( ParseInput&, States... ) >
      struct function< bool ( * )( ParseInput&, States... ), U >
      {
         using rule_t = function;
         using subs_t = empty_list;

         template< apply_mode A,
                   rewind_mode M,
                   template< typename... >
                   class Action,
                   template< typename... >
                   class Control >
         [[nodiscard]] static bool match( ParseInput& in, States... st ) noexcept( noexcept( U( in, st... ) ) )
         {
            return U( in, st... );
         }
      };

      template< typename F, F U >
      inline constexpr bool enable_control< function< F, U > > = false;

   }  // namespace internal

   template< auto F >
   struct function
      : internal::function< decltype( F ), F >
   {};

}  // namespace rothar

#endif
